JP2011239005A - Sound reproducing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate adjustment of a frequency amplification degree pattern for hearing aids.SOLUTION: A sound reproducing apparatus 8 comprises: an audio inputting unit 9; an acoustic signal processing unit 11 connected to an output side of the audio input unit 9; a frequency amplification degree pattern setting unit 12 for setting a frequency amplification degree pattern of the acoustic signal processing unit 11; and an audio output unit 14 disposed on an output side of the acoustic signal processing unit 11. The frequency amplification degree pattern setting unit 12 has: a confirmation sound output unit 23 for outputting a confirmation sound for a plurality of frequencies; a user judging unit 24 for inputting a user's judgment result for the confirmation sound from the confirmation sound output unit 23; and a parameter determining unit 25 for setting a frequency amplification degree pattern on the basis of a judgment result of the user judging unit 24. A sound source correcting unit 28 is connected to the parameter determining unit 25.

Description

  The present invention relates to a sound reproducing device.

  As is well known, the sound reproduction apparatus includes an audio input unit, an audio signal processing unit connected to the output side of the audio input unit, and an audio output unit provided on the output side of the audio signal processing unit. The sound signal from the audio input unit is amplified by the sound signal processing unit and output from the audio output unit to the speaker. In recent years, for example, hearing loss with age has made it impossible to hear good sound as it used to be, so there is an expectation that if this sound reproduction device has a hearing aid function, good sound can be heard. .

  That is, in the hearing aid, since the frequency amplification pattern is set according to the hearing ability of the hearing aid user, the frequency amplification pattern of the acoustic signal processing unit may be matched with the frequency amplification pattern of the hearing aid user. It is expected that it will become a sound. In addition, even if the user is not a hearing aid user, it may be possible to set a frequency amplification pattern while listening to confirmation sounds for a plurality of frequencies (for example, Patent Document 1 below).

JP-A-8-298699

  The problem with the above-described conventional example is that it cannot necessarily experience the expected viewing experience, and as a result, it takes a long time to adjust the frequency amplification pattern, resulting in poor usability. In other words, the sensitivity to sound often fluctuates depending on time, place, physical condition, etc., and in hearing aids, it takes a long time to make adjustments, even though experts have set frequency amplification patterns. ing. Therefore, it is difficult for a person who is not an expert to perform such a frequency amplification pattern in the sound reproducing device, and as a result, it takes a long time to adjust the frequency amplification pattern, resulting in poor usability.

  Therefore, the present invention aims to improve usability.

  In order to achieve this object, the sound reproducing device of the present invention is connected to an audio input unit to which an audio signal is input and an output side of the audio input unit, and performs an audio signal process for amplifying the audio signal. A frequency amplification pattern setting unit that sets a frequency amplification pattern of the acoustic signal processing unit, and an audio output unit that is provided on the output side of the acoustic signal processing unit and outputs the acoustic signal, The frequency amplification pattern setting unit includes a confirmation sound output unit that outputs confirmation sounds for a plurality of frequencies, a user determination unit that inputs a user's hearing determination result for the confirmation sound from the confirmation sound output unit, and the user A parameter determination unit that sets the frequency amplification pattern based on the hearing determination result of the determination unit, and the parameter determination unit includes a user-desired frequency Tone correction unit configured to correct the frequency amplification degree pattern is connected to selectively amplify bands, thereby is to achieve the intended purpose.

  In the sound reproduction device of the present invention, the frequency amplification pattern setting unit that sets the frequency amplification pattern of the acoustic signal processing unit includes a confirmation sound output unit that outputs confirmation sounds for a plurality of frequencies, and a confirmation sound output unit A user determination unit that inputs a user's hearing determination result with respect to the sound, and a parameter determination unit that sets a frequency amplification pattern based on the hearing determination result of the user determination unit. Since the sound source correction unit that corrects the frequency amplification pattern so as to selectively amplify the frequency band is connected, the user can easily set the frequency amplification pattern by performing the determination by the user determination unit, and then If the characteristic correction expected for each sound source is performed by the sound source correction unit connected to the parameter determination unit, the viewing feeling expected by itself can be obtained. Therefore, it is not necessary for the user to set the frequency amplification pattern over and over, which is easy to use.

The schematic diagram for demonstrating the sound reproduction apparatus concerning embodiment of this invention Perspective view of sound reproduction device Enlarged perspective view of the main part of the sound reproducing device Control block diagram of sound reproduction device Front view showing the display unit of the sound reproducing device Front view showing the display unit of the sound reproducing device The figure for demonstrating operation | movement of a sound reproduction apparatus.

  Hereinafter, a sound reproducing apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic diagram for explaining the sound reproducing device 8. The television receiver 1 and the recording device 2 are connected to the audio wireless transmission unit 3. The sound from the television receiver 1 and the recording device 2 is transmitted to the sound reproduction device 8 wirelessly via the sound wireless transmission unit 3.

  As shown in FIG. 2, the sound reproducing device 8 includes a headphone 4 and a frequency amplification pattern setting unit 12 connected to the headphone 4 via a wire 15. As shown in FIG. 2, the headphone 4 is configured by providing speakers 6 at both ends of the arm 5.

  As shown in FIG. 4, the sound reproducing device 8 includes a receiving device 7, an audio input unit 9 that is connected to the output side of the receiving device 7 and receives an acoustic signal, and an A / An acoustic signal processing unit 11 (DSP) that is connected via the D conversion unit 10 to amplify an acoustic signal and the like, and a frequency amplification pattern setting unit 12 that sets a frequency amplification pattern of the acoustic signal processing unit 11 The audio output unit 14 is provided on the output side of the acoustic signal processing unit 11 via the D / A conversion unit 13 and outputs an acoustic signal. The speaker 6 is connected to the audio output unit 14.

  As shown in FIG. 3, the frequency amplification pattern setting unit 12 includes a display unit 16. An upper selection button 17, a right selection button 18, and a lower selection are displayed on the lower right side of the display unit 16. A button 19 and a selection button 20 for the left side are arranged. A menu selection button 21 and a determination button 22 are arranged on the lower left of the display unit 16. The frequency amplification pattern setting unit 12 sets the ratio between the input signal and the output signal, that is, the amplification according to the frequency.

  Furthermore, inside the frequency amplification pattern setting unit 12, as shown in FIG. 4, a confirmation sound output unit 23 that outputs confirmation sounds for a plurality of frequencies, and a user's response to confirmation sounds from the confirmation sound output unit 23. A user determination unit 24 for inputting a hearing determination result and a parameter determination unit 25 for setting a frequency amplification pattern based on the determination result of the user determination unit 24 are provided. The parameter determination unit 25 is connected to a sound source correction unit 28 for correcting a frequency amplification pattern so as to selectively amplify a user's desired frequency band.

  In the present embodiment, the sound source correction unit 28 includes, for example, a sound source selection unit 26 and a selected sound source display instruction unit 27. That is, the sound source selection unit 26 is connected to the parameter determination unit 25, the selected sound source display instruction unit 27 is connected to the output side of the sound source selection unit 26, and the output side of the selected sound source display instruction unit 27 is connected to the sound signal. It is connected to the processing unit 11. The sound source correction unit 28 selects and amplifies a specific frequency band among the frequency amplification patterns set in the parameter determination unit 25 based on the determination result of the user determination unit 24.

  Hereinafter, usage examples in the present embodiment will be described. First, the user sets the frequency amplification pattern of the acoustic signal processing unit 11 in accordance with his / her hearing as in the above-described prior art. When the frequency amplification pattern setting is selected by the menu selection button 21, several sounds from the low frequency side to the high frequency side of the audible frequency are sequentially output from the confirmation sound output unit 23 to the speaker 6 as follows. For example, when a low-pitched sound is output from the speaker 6, when the sound pressure level is gradually increased by the selection button 17 and the decision button 22 is pressed when the sound is slightly heard, the user determination unit 24. Thus, the hearing level for the bass is determined, and this is determined as a bass parameter by the parameter determination unit 25. Then, since a sound having a frequency higher than that of the bass is output from the speaker 6, the sound pressure level is gradually increased by the selection button 17 at this time, and is determined when the sound is slightly heard. When the button 22 is pressed, the hearing determination level for this sound is determined by the user determination unit 24, and this is determined as a parameter of the sound by the parameter determination unit 25.

  In this way, the speaker 6 outputs a sound having a frequency higher than that of the previous time, and the sound pressure level is gradually increased by the selection button 17 every time, and the sound is slightly heard and determined at the time. When the button 22 is pressed, the hearing determination level for this sound is determined by the user determination unit 24, and this is determined as a parameter of the sound by the parameter determination unit 25. By repeating the above operation, the high sound is heard from the low frequency side of the audible frequency. A frequency amplification pattern (29 in FIG. 5) up to the side is set.

  Next, the sound source correction unit 28 selects and amplifies a specific frequency band among the frequency amplification patterns set in the parameter determination unit 25. In the present embodiment, the details are as follows. First, a sound source is selected by the menu selection button 21. Then, a frequency amplification pattern 29 is displayed on the display unit 16 as shown in FIG. 5, and an instrument name window 30 appears on the upper left. Therefore, if the user selects an instrument name with the selection buttons 17 and 19 in FIG. 3, the sound source selection unit 26 selects, for example, a violin as shown in FIG.

  At this time, the selected sound source display instruction unit 27 displays the frequency band 32 of the violin superimposed on the frequency amplification pattern 29. After that, if the frequency band 32 of the violin is raised as shown in FIG. 6 by the selection button 17 in FIG. 3, a frequency amplification pattern in which a sound in which the sound source to be viewed is expressed in a characteristic manner is output from the speaker 6 Become. That is, the frequency amplification pattern is corrected so that the frequency band 32 of the violin is selectively amplified. Thereby, the sound of the sound source that the user wants to hear can be heard well.

  FIG. 7 shows the frequency band for each musical instrument. If the musical instrument expected for the sound source to be viewed is selected, the frequency amplification pattern 29 is characteristically corrected by the musical instrument as described above. be able to. For this reason, the user can listen to the sound that he / she expects, and the setting for the user can be performed very easily, which is easy to use.

  In the sound reproducing device of the present invention, it is not necessary for the user to set the frequency amplification pattern many times in order to obtain a highly satisfying viewing feeling, which is easy to use. For this reason, it is expected to be widely used as various sound reproducing apparatuses.

DESCRIPTION OF SYMBOLS 1 Television receiver 2 Recording apparatus 3 Audio | voice radio | wireless transmission part 4 Headphone 5 Arm 6 Speaker 7 Reception apparatus 8 Sound reproduction apparatus 9 Audio input part 10 A / D conversion part 11 Acoustic signal processing part 12 Frequency amplification pattern setting part 13 D / A conversion unit 14 Audio output unit 15 Wire 16 Display unit 17, 18, 19, 20 Selection button 21 Menu selection button 22 Determination button 23 Confirmation sound output unit 24 User determination unit 25 Parameter determination unit 26 Sound source selection unit 27 Selected sound source display Instruction unit 28 Sound source correction unit 29 Frequency amplification pattern 30 Instrument name window

Claims (5)

An audio input unit for receiving an acoustic signal;
An acoustic signal processing unit connected to the output side of the audio input unit for amplifying the acoustic signal;
A frequency amplification pattern setting unit that sets a frequency amplification pattern of the acoustic signal processing unit; and an audio output unit that is provided on the output side of the acoustic signal processing unit and outputs the acoustic signal.
The frequency amplification pattern setting unit includes a confirmation sound output unit that outputs confirmation sounds for a plurality of frequencies, a user determination unit that inputs a user's hearing determination result for the confirmation sound from the confirmation sound output unit, and the user A parameter determination unit that sets the frequency amplification pattern based on the hearing determination result of the determination unit;
The sound reproduction apparatus, wherein the parameter determination unit is connected to a sound source correction unit that corrects the frequency amplification pattern so as to selectively amplify a user's desired frequency band. The sound reproduction device according to claim 1, wherein the sound source correction unit includes a sound source selection unit that can select at least one of a plurality of different sound sources. The sound reproduction device according to claim 2, wherein the sound source correction unit includes a display unit that displays a frequency band of a sound source selected by the sound source selection unit. The sound reproduction device according to claim 3, further comprising an adjustment unit that adjusts a frequency band displayed on the display unit. The sound reproduction device according to claim 2, wherein the sound source selection unit is configured to select a musical instrument.